The world’s oldest Sherlockian society gathering since 1934.
About the BSI
You come for Sherlock.
You stay for the friendships.
The Baker Street Irregulars is an international literary society and 501(c)(3) nonprofit dedicated to the study of Sherlock Holmes, Dr. Watson, Sir Arthur Conan Doyle, and the Victorian world.
Founded in 1934, we are the oldest Sherlockian society in existence. Our members have distinguished themselves through scholarship, writing, and decades of dedication to the Canon. But you don’t need an invitation to be part of what we do — the world of the BSI is open to anyone who loves Holmes.
The Baker Street Journal
The premier journal of Sherlockian scholarship since 1946.
Founded by Edgar W. Smith, the Baker Street Journal has been essential reading for anyone captivated by Sherlock Holmes, Sir Arthur Conan Doyle, and the world of the Canon. Published quarterly, with a special Christmas Annual each year. Serious scholarship, playful inquiry, and a world where it is always 1895.
The latest from 221B
News & Updates
The 2026 BSI Weekend Report
Sherlockians from far and wide gathered in New York City for the 2026…
2025 Morley-Montgomery Award
The winner of the 2025 Morley-Montgomery Award is Fabienne Courouge, BSI (“Henri Fournaye”).…
Irregular Chronicles of the Early ‘Fifties
Irregular Chronicles of the Early ‘Fifties. By Julie McKuras, BSI and Bill Mason,…
BSI Press
More than 60 volumes of Sherlockian scholarship — and counting.
The BSI Press has been publishing books about Sherlock Holmes, Sir Arthur Conan Doyle, and the Victorian world for over six decades. From facsimile manuscript editions to international scholarship collections — there’s always something new on the shelf, and something classic worth discovering.
